./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 229b91e3de975681c9279ff5877f98d2e4ca4fb1a04c4bc6189640654fad2f3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:21:56,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:21:56,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:21:56,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:21:56,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:21:56,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:21:56,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:21:56,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:21:56,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:21:56,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:21:56,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:21:56,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:21:56,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:21:56,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:21:56,115 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:21:56,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:21:56,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:21:56,117 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:21:56,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:21:56,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:21:56,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:21:56,118 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 229b91e3de975681c9279ff5877f98d2e4ca4fb1a04c4bc6189640654fad2f3e [2024-12-02 08:21:56,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:21:56,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:21:56,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:21:56,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:21:56,357 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:21:56,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-12-02 08:21:58,987 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/data/11398cc22/f0363df0652e4d76acbd756eebf1dd33/FLAGc3a050f38 [2024-12-02 08:21:59,418 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:21:59,419 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-12-02 08:21:59,445 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/data/11398cc22/f0363df0652e4d76acbd756eebf1dd33/FLAGc3a050f38 [2024-12-02 08:21:59,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/data/11398cc22/f0363df0652e4d76acbd756eebf1dd33 [2024-12-02 08:21:59,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:21:59,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:21:59,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:21:59,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:21:59,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:21:59,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:59" (1/1) ... [2024-12-02 08:21:59,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c531172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:59, skipping insertion in model container [2024-12-02 08:21:59,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:59" (1/1) ... [2024-12-02 08:21:59,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:21:59,948 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[11640,11653] [2024-12-02 08:22:00,003 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[18930,18943] [2024-12-02 08:22:00,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:22:00,608 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:22:00,640 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[11640,11653] [2024-12-02 08:22:00,651 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[18930,18943] [2024-12-02 08:22:01,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:22:01,120 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:22:01,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01 WrapperNode [2024-12-02 08:22:01,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:22:01,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:22:01,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:22:01,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:22:01,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,450 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-12-02 08:22:01,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:22:01,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:22:01,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:22:01,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:22:01,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,685 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:22:01,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,782 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,794 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:22:01,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:22:01,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:22:01,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:22:01,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (1/1) ... [2024-12-02 08:22:01,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:22:01,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:01,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:22:01,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:22:01,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:22:01,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:22:01,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:22:01,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:22:02,092 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:22:02,094 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:22:06,401 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-12-02 08:22:06,401 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:22:06,427 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:22:06,427 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 08:22:06,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:22:06 BoogieIcfgContainer [2024-12-02 08:22:06,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:22:06,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:22:06,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:22:06,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:22:06,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:21:59" (1/3) ... [2024-12-02 08:22:06,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc71b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:22:06, skipping insertion in model container [2024-12-02 08:22:06,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:22:01" (2/3) ... [2024-12-02 08:22:06,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc71b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:22:06, skipping insertion in model container [2024-12-02 08:22:06,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:22:06" (3/3) ... [2024-12-02 08:22:06,437 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-12-02 08:22:06,448 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:22:06,450 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 08:22:06,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:22:06,522 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@143a6f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:22:06,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 08:22:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:06,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 08:22:06,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:06,535 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:06,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:06,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash 920833856, now seen corresponding path program 1 times [2024-12-02 08:22:06,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:06,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660384862] [2024-12-02 08:22:06,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:06,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:06,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:06,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660384862] [2024-12-02 08:22:06,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660384862] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:06,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:06,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:22:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003370358] [2024-12-02 08:22:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:06,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:22:06,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:06,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:22:06,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:22:06,760 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:06,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:06,832 INFO L93 Difference]: Finished difference Result 1763 states and 3346 transitions. [2024-12-02 08:22:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:22:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 08:22:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:06,847 INFO L225 Difference]: With dead ends: 1763 [2024-12-02 08:22:06,847 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 08:22:06,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:22:06,856 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:06,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1642 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 08:22:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 08:22:06,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8930288461538463) internal successors, (1575), 833 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:06,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1575 transitions. [2024-12-02 08:22:06,919 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1575 transitions. Word has length 25 [2024-12-02 08:22:06,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:06,920 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1575 transitions. [2024-12-02 08:22:06,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1575 transitions. [2024-12-02 08:22:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 08:22:06,921 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:06,921 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:06,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:22:06,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:06,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:06,922 INFO L85 PathProgramCache]: Analyzing trace with hash -768109886, now seen corresponding path program 1 times [2024-12-02 08:22:06,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:06,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989466970] [2024-12-02 08:22:06,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:06,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:07,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:07,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989466970] [2024-12-02 08:22:07,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989466970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:07,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:07,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:22:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607141050] [2024-12-02 08:22:07,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:07,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:22:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:07,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:22:07,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:22:07,126 INFO L87 Difference]: Start difference. First operand 834 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:07,225 INFO L93 Difference]: Finished difference Result 881 states and 1647 transitions. [2024-12-02 08:22:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:22:07,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 08:22:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:07,229 INFO L225 Difference]: With dead ends: 881 [2024-12-02 08:22:07,229 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 08:22:07,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:22:07,230 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:07,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 08:22:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 08:22:07,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8557692307692308) internal successors, (1544), 833 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1544 transitions. [2024-12-02 08:22:07,251 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1544 transitions. Word has length 25 [2024-12-02 08:22:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:07,251 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1544 transitions. [2024-12-02 08:22:07,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1544 transitions. [2024-12-02 08:22:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 08:22:07,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:07,253 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:07,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:22:07,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:07,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:07,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1032471947, now seen corresponding path program 1 times [2024-12-02 08:22:07,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:07,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053757587] [2024-12-02 08:22:07,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:07,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:07,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:07,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053757587] [2024-12-02 08:22:07,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053757587] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:07,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:07,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486195054] [2024-12-02 08:22:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:07,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:07,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:07,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:07,436 INFO L87 Difference]: Start difference. First operand 834 states and 1544 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:07,736 INFO L93 Difference]: Finished difference Result 1264 states and 2224 transitions. [2024-12-02 08:22:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:22:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-12-02 08:22:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:07,742 INFO L225 Difference]: With dead ends: 1264 [2024-12-02 08:22:07,742 INFO L226 Difference]: Without dead ends: 1221 [2024-12-02 08:22:07,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:22:07,744 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7906 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:07,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 3025 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-12-02 08:22:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 875. [2024-12-02 08:22:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 873 states have (on average 1.843069873997709) internal successors, (1609), 874 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1609 transitions. [2024-12-02 08:22:07,772 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1609 transitions. Word has length 55 [2024-12-02 08:22:07,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:07,772 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1609 transitions. [2024-12-02 08:22:07,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1609 transitions. [2024-12-02 08:22:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 08:22:07,773 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:07,774 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:07,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:22:07,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:07,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:07,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1347601061, now seen corresponding path program 1 times [2024-12-02 08:22:07,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:07,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016097144] [2024-12-02 08:22:07,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:07,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:07,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:07,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016097144] [2024-12-02 08:22:07,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016097144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:07,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:07,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807693741] [2024-12-02 08:22:07,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:07,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:07,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:07,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:07,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:07,861 INFO L87 Difference]: Start difference. First operand 875 states and 1609 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:07,895 INFO L93 Difference]: Finished difference Result 1032 states and 1856 transitions. [2024-12-02 08:22:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:07,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-12-02 08:22:07,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:07,899 INFO L225 Difference]: With dead ends: 1032 [2024-12-02 08:22:07,899 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 08:22:07,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:07,900 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:07,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 08:22:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-12-02 08:22:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.8209745762711864) internal successors, (1719), 945 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1719 transitions. [2024-12-02 08:22:07,926 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1719 transitions. Word has length 57 [2024-12-02 08:22:07,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:07,926 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1719 transitions. [2024-12-02 08:22:07,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:07,927 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1719 transitions. [2024-12-02 08:22:07,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 08:22:07,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:07,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:07,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:22:07,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:07,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:07,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1281107549, now seen corresponding path program 1 times [2024-12-02 08:22:07,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:07,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201849499] [2024-12-02 08:22:07,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:07,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:08,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:08,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201849499] [2024-12-02 08:22:08,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201849499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:08,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:08,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:08,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488748823] [2024-12-02 08:22:08,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:08,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:08,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:08,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:08,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:08,205 INFO L87 Difference]: Start difference. First operand 946 states and 1719 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:08,392 INFO L93 Difference]: Finished difference Result 1103 states and 1963 transitions. [2024-12-02 08:22:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:08,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-12-02 08:22:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:08,397 INFO L225 Difference]: With dead ends: 1103 [2024-12-02 08:22:08,397 INFO L226 Difference]: Without dead ends: 948 [2024-12-02 08:22:08,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:22:08,398 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 7449 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7449 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:08,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7449 Valid, 1794 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-12-02 08:22:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 946. [2024-12-02 08:22:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.81885593220339) internal successors, (1717), 945 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1717 transitions. [2024-12-02 08:22:08,423 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1717 transitions. Word has length 57 [2024-12-02 08:22:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:08,423 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1717 transitions. [2024-12-02 08:22:08,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,423 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1717 transitions. [2024-12-02 08:22:08,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 08:22:08,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:08,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:08,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:22:08,424 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:08,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:08,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1474351433, now seen corresponding path program 1 times [2024-12-02 08:22:08,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:08,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581044784] [2024-12-02 08:22:08,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:08,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:08,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:08,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:08,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581044784] [2024-12-02 08:22:08,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581044784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:08,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:08,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:22:08,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272068445] [2024-12-02 08:22:08,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:08,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:22:08,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:08,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:22:08,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:22:08,703 INFO L87 Difference]: Start difference. First operand 946 states and 1717 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:08,773 INFO L93 Difference]: Finished difference Result 954 states and 1726 transitions. [2024-12-02 08:22:08,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:22:08,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-12-02 08:22:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:08,777 INFO L225 Difference]: With dead ends: 954 [2024-12-02 08:22:08,777 INFO L226 Difference]: Without dead ends: 952 [2024-12-02 08:22:08,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:22:08,779 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:08,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-12-02 08:22:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2024-12-02 08:22:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 950 states have (on average 1.8126315789473684) internal successors, (1722), 951 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1722 transitions. [2024-12-02 08:22:08,802 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1722 transitions. Word has length 58 [2024-12-02 08:22:08,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:08,803 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1722 transitions. [2024-12-02 08:22:08,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,803 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1722 transitions. [2024-12-02 08:22:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 08:22:08,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:08,804 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:08,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:22:08,804 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:08,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:08,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1913192451, now seen corresponding path program 1 times [2024-12-02 08:22:08,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:08,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045976242] [2024-12-02 08:22:08,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:08,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:08,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:08,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045976242] [2024-12-02 08:22:08,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045976242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:08,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:08,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957253745] [2024-12-02 08:22:08,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:08,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:08,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:08,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:08,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:08,875 INFO L87 Difference]: Start difference. First operand 952 states and 1722 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:08,906 INFO L93 Difference]: Finished difference Result 1127 states and 1988 transitions. [2024-12-02 08:22:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:08,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 08:22:08,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:08,911 INFO L225 Difference]: With dead ends: 1127 [2024-12-02 08:22:08,911 INFO L226 Difference]: Without dead ends: 1037 [2024-12-02 08:22:08,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:08,912 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:08,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:08,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-12-02 08:22:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1035. [2024-12-02 08:22:08,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1033 states have (on average 1.78702807357212) internal successors, (1846), 1034 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1846 transitions. [2024-12-02 08:22:08,940 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1846 transitions. Word has length 59 [2024-12-02 08:22:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:08,940 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1846 transitions. [2024-12-02 08:22:08,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1846 transitions. [2024-12-02 08:22:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 08:22:08,941 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:08,941 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:08,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:22:08,941 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:08,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2117918461, now seen corresponding path program 1 times [2024-12-02 08:22:08,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:08,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971628732] [2024-12-02 08:22:08,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:08,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:09,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:09,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971628732] [2024-12-02 08:22:09,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971628732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:09,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:09,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:09,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205073647] [2024-12-02 08:22:09,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:09,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:09,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:09,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:09,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,006 INFO L87 Difference]: Start difference. First operand 1035 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:09,040 INFO L93 Difference]: Finished difference Result 1493 states and 2538 transitions. [2024-12-02 08:22:09,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:09,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 08:22:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:09,045 INFO L225 Difference]: With dead ends: 1493 [2024-12-02 08:22:09,046 INFO L226 Difference]: Without dead ends: 1252 [2024-12-02 08:22:09,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,047 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:09,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-12-02 08:22:09,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2024-12-02 08:22:09,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1248 states have (on average 1.733974358974359) internal successors, (2164), 1249 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 2164 transitions. [2024-12-02 08:22:09,104 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 2164 transitions. Word has length 59 [2024-12-02 08:22:09,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:09,105 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 2164 transitions. [2024-12-02 08:22:09,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 2164 transitions. [2024-12-02 08:22:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 08:22:09,105 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:09,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:09,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:22:09,106 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:09,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:09,106 INFO L85 PathProgramCache]: Analyzing trace with hash -879656445, now seen corresponding path program 1 times [2024-12-02 08:22:09,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:09,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862450539] [2024-12-02 08:22:09,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:09,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:09,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862450539] [2024-12-02 08:22:09,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862450539] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:09,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:09,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:09,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534325624] [2024-12-02 08:22:09,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:09,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:09,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:09,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:09,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,169 INFO L87 Difference]: Start difference. First operand 1250 states and 2164 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:09,211 INFO L93 Difference]: Finished difference Result 2114 states and 3450 transitions. [2024-12-02 08:22:09,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:09,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 08:22:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:09,217 INFO L225 Difference]: With dead ends: 2114 [2024-12-02 08:22:09,218 INFO L226 Difference]: Without dead ends: 1658 [2024-12-02 08:22:09,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,219 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:09,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-12-02 08:22:09,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1656. [2024-12-02 08:22:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 1654 states have (on average 1.663845223700121) internal successors, (2752), 1655 states have internal predecessors, (2752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2752 transitions. [2024-12-02 08:22:09,263 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2752 transitions. Word has length 59 [2024-12-02 08:22:09,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:09,264 INFO L471 AbstractCegarLoop]: Abstraction has 1656 states and 2752 transitions. [2024-12-02 08:22:09,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2752 transitions. [2024-12-02 08:22:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 08:22:09,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:09,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:09,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:22:09,265 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:09,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:09,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1199842051, now seen corresponding path program 1 times [2024-12-02 08:22:09,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:09,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146604992] [2024-12-02 08:22:09,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:09,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:09,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146604992] [2024-12-02 08:22:09,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146604992] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:09,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:09,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:09,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464870388] [2024-12-02 08:22:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:09,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:09,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:09,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:09,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,325 INFO L87 Difference]: Start difference. First operand 1656 states and 2752 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:09,377 INFO L93 Difference]: Finished difference Result 3284 states and 5130 transitions. [2024-12-02 08:22:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 08:22:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:09,386 INFO L225 Difference]: With dead ends: 3284 [2024-12-02 08:22:09,386 INFO L226 Difference]: Without dead ends: 2422 [2024-12-02 08:22:09,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,388 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:09,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:09,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2024-12-02 08:22:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2420. [2024-12-02 08:22:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2418 states have (on average 1.5847808105872623) internal successors, (3832), 2419 states have internal predecessors, (3832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3832 transitions. [2024-12-02 08:22:09,453 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3832 transitions. Word has length 59 [2024-12-02 08:22:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:09,453 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3832 transitions. [2024-12-02 08:22:09,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3832 transitions. [2024-12-02 08:22:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 08:22:09,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:09,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:09,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:22:09,454 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:09,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1314192381, now seen corresponding path program 1 times [2024-12-02 08:22:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:09,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455426728] [2024-12-02 08:22:09,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:09,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:09,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455426728] [2024-12-02 08:22:09,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455426728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:09,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:09,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:09,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676942868] [2024-12-02 08:22:09,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:09,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:09,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:09,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:09,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,512 INFO L87 Difference]: Start difference. First operand 2420 states and 3832 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:09,584 INFO L93 Difference]: Finished difference Result 5480 states and 8202 transitions. [2024-12-02 08:22:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:09,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-12-02 08:22:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:09,597 INFO L225 Difference]: With dead ends: 5480 [2024-12-02 08:22:09,597 INFO L226 Difference]: Without dead ends: 3854 [2024-12-02 08:22:09,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,601 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:09,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:09,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2024-12-02 08:22:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3852. [2024-12-02 08:22:09,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3850 states have (on average 1.5064935064935066) internal successors, (5800), 3851 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 5800 transitions. [2024-12-02 08:22:09,714 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 5800 transitions. Word has length 59 [2024-12-02 08:22:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:09,714 INFO L471 AbstractCegarLoop]: Abstraction has 3852 states and 5800 transitions. [2024-12-02 08:22:09,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 5800 transitions. [2024-12-02 08:22:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 08:22:09,715 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:09,715 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:09,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:22:09,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:09,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1286737867, now seen corresponding path program 1 times [2024-12-02 08:22:09,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:09,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822050843] [2024-12-02 08:22:09,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:09,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:09,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:09,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822050843] [2024-12-02 08:22:09,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822050843] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:09,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:09,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:22:09,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585334498] [2024-12-02 08:22:09,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:09,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:09,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:09,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:09,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:09,785 INFO L87 Difference]: Start difference. First operand 3852 states and 5800 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:13,126 INFO L93 Difference]: Finished difference Result 5356 states and 8673 transitions. [2024-12-02 08:22:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-12-02 08:22:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:13,136 INFO L225 Difference]: With dead ends: 5356 [2024-12-02 08:22:13,136 INFO L226 Difference]: Without dead ends: 4603 [2024-12-02 08:22:13,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:13,138 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 843 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:13,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 580 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 08:22:13,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2024-12-02 08:22:13,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4603. [2024-12-02 08:22:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4601 states have (on average 1.4733753531840905) internal successors, (6779), 4602 states have internal predecessors, (6779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 6779 transitions. [2024-12-02 08:22:13,228 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 6779 transitions. Word has length 63 [2024-12-02 08:22:13,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:13,228 INFO L471 AbstractCegarLoop]: Abstraction has 4603 states and 6779 transitions. [2024-12-02 08:22:13,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 6779 transitions. [2024-12-02 08:22:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:22:13,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:13,231 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:13,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:22:13,232 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:13,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1793062525, now seen corresponding path program 1 times [2024-12-02 08:22:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:13,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419681509] [2024-12-02 08:22:13,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:13,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:22:13,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419681509] [2024-12-02 08:22:13,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419681509] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:13,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:13,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:13,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132576051] [2024-12-02 08:22:13,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:13,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:13,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:13,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:13,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:13,366 INFO L87 Difference]: Start difference. First operand 4603 states and 6779 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:13,721 INFO L93 Difference]: Finished difference Result 19671 states and 28049 transitions. [2024-12-02 08:22:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:13,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 08:22:13,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:13,759 INFO L225 Difference]: With dead ends: 19671 [2024-12-02 08:22:13,759 INFO L226 Difference]: Without dead ends: 17493 [2024-12-02 08:22:13,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:22:13,765 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6314 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:13,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 3707 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:13,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17493 states. [2024-12-02 08:22:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17493 to 7227. [2024-12-02 08:22:13,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7225 states have (on average 1.4453979238754324) internal successors, (10443), 7226 states have internal predecessors, (10443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:13,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 10443 transitions. [2024-12-02 08:22:13,991 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 10443 transitions. Word has length 79 [2024-12-02 08:22:13,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:13,992 INFO L471 AbstractCegarLoop]: Abstraction has 7227 states and 10443 transitions. [2024-12-02 08:22:13,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:13,992 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 10443 transitions. [2024-12-02 08:22:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:22:13,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:13,994 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:13,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:22:13,994 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:13,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:13,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1529206141, now seen corresponding path program 1 times [2024-12-02 08:22:13,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:13,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408629612] [2024-12-02 08:22:13,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:13,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:22:14,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:14,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408629612] [2024-12-02 08:22:14,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408629612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:14,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:14,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:14,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879384897] [2024-12-02 08:22:14,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:14,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:14,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:14,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:14,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:14,125 INFO L87 Difference]: Start difference. First operand 7227 states and 10443 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:14,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:14,494 INFO L93 Difference]: Finished difference Result 22727 states and 32337 transitions. [2024-12-02 08:22:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:14,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 08:22:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:14,537 INFO L225 Difference]: With dead ends: 22727 [2024-12-02 08:22:14,537 INFO L226 Difference]: Without dead ends: 19669 [2024-12-02 08:22:14,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:22:14,543 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 6316 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:14,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6316 Valid, 3675 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:14,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19669 states. [2024-12-02 08:22:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19669 to 11371. [2024-12-02 08:22:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11371 states, 11369 states have (on average 1.4265986454393527) internal successors, (16219), 11370 states have internal predecessors, (16219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:14,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 16219 transitions. [2024-12-02 08:22:14,865 INFO L78 Accepts]: Start accepts. Automaton has 11371 states and 16219 transitions. Word has length 79 [2024-12-02 08:22:14,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:14,865 INFO L471 AbstractCegarLoop]: Abstraction has 11371 states and 16219 transitions. [2024-12-02 08:22:14,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:14,866 INFO L276 IsEmpty]: Start isEmpty. Operand 11371 states and 16219 transitions. [2024-12-02 08:22:14,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:22:14,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:14,868 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:14,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:22:14,868 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:14,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:14,869 INFO L85 PathProgramCache]: Analyzing trace with hash -290944125, now seen corresponding path program 1 times [2024-12-02 08:22:14,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:14,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902323197] [2024-12-02 08:22:14,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:14,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 08:22:15,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:15,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902323197] [2024-12-02 08:22:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902323197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:15,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996389301] [2024-12-02 08:22:15,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:15,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:15,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:15,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:15,037 INFO L87 Difference]: Start difference. First operand 11371 states and 16219 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:15,512 INFO L93 Difference]: Finished difference Result 25783 states and 36609 transitions. [2024-12-02 08:22:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:15,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 08:22:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:15,534 INFO L225 Difference]: With dead ends: 25783 [2024-12-02 08:22:15,534 INFO L226 Difference]: Without dead ends: 22725 [2024-12-02 08:22:15,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:22:15,540 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6339 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:15,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3642 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22725 states. [2024-12-02 08:22:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22725 to 14427. [2024-12-02 08:22:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.42051993067591) internal successors, (20491), 14426 states have internal predecessors, (20491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 20491 transitions. [2024-12-02 08:22:15,863 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 20491 transitions. Word has length 79 [2024-12-02 08:22:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:15,863 INFO L471 AbstractCegarLoop]: Abstraction has 14427 states and 20491 transitions. [2024-12-02 08:22:15,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 20491 transitions. [2024-12-02 08:22:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:22:15,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:15,865 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:15,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:22:15,865 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:15,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:15,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1788554371, now seen corresponding path program 1 times [2024-12-02 08:22:15,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:15,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807786661] [2024-12-02 08:22:15,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:15,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 08:22:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:15,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807786661] [2024-12-02 08:22:15,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807786661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:15,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351769041] [2024-12-02 08:22:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:15,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:15,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:15,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:15,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:15,989 INFO L87 Difference]: Start difference. First operand 14427 states and 20491 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:16,377 INFO L93 Difference]: Finished difference Result 28839 states and 40881 transitions. [2024-12-02 08:22:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:16,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 08:22:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:16,400 INFO L225 Difference]: With dead ends: 28839 [2024-12-02 08:22:16,400 INFO L226 Difference]: Without dead ends: 25781 [2024-12-02 08:22:16,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:22:16,408 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6378 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:16,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 3636 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25781 states. [2024-12-02 08:22:17,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25781 to 17483. [2024-12-02 08:22:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17483 states, 17481 states have (on average 1.4165665579772324) internal successors, (24763), 17482 states have internal predecessors, (24763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17483 states to 17483 states and 24763 transitions. [2024-12-02 08:22:17,197 INFO L78 Accepts]: Start accepts. Automaton has 17483 states and 24763 transitions. Word has length 79 [2024-12-02 08:22:17,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:17,197 INFO L471 AbstractCegarLoop]: Abstraction has 17483 states and 24763 transitions. [2024-12-02 08:22:17,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 17483 states and 24763 transitions. [2024-12-02 08:22:17,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 08:22:17,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:17,201 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:17,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:22:17,201 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:17,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:17,202 INFO L85 PathProgramCache]: Analyzing trace with hash -725480061, now seen corresponding path program 1 times [2024-12-02 08:22:17,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:17,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804092517] [2024-12-02 08:22:17,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:17,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 08:22:17,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:17,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804092517] [2024-12-02 08:22:17,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804092517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:17,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:17,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:22:17,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143936428] [2024-12-02 08:22:17,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:17,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:17,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:17,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:17,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:22:17,387 INFO L87 Difference]: Start difference. First operand 17483 states and 24763 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:17,864 INFO L93 Difference]: Finished difference Result 31895 states and 45153 transitions. [2024-12-02 08:22:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:22:17,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 08:22:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:17,893 INFO L225 Difference]: With dead ends: 31895 [2024-12-02 08:22:17,893 INFO L226 Difference]: Without dead ends: 28837 [2024-12-02 08:22:17,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:22:17,901 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 6332 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:17,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3699 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:22:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28837 states. [2024-12-02 08:22:18,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28837 to 20539. [2024-12-02 08:22:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.4137897453376833) internal successors, (29035), 20538 states have internal predecessors, (29035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:18,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 29035 transitions. [2024-12-02 08:22:18,422 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 29035 transitions. Word has length 79 [2024-12-02 08:22:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:18,422 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 29035 transitions. [2024-12-02 08:22:18,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 29035 transitions. [2024-12-02 08:22:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 08:22:18,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:18,425 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:18,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:22:18,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:18,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1265022664, now seen corresponding path program 1 times [2024-12-02 08:22:18,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:18,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544186568] [2024-12-02 08:22:18,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:18,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:18,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:18,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544186568] [2024-12-02 08:22:18,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544186568] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:18,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:18,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:18,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429408972] [2024-12-02 08:22:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:18,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:18,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:18,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:18,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:18,521 INFO L87 Difference]: Start difference. First operand 20539 states and 29035 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:18,972 INFO L93 Difference]: Finished difference Result 39535 states and 55613 transitions. [2024-12-02 08:22:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:18,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 08:22:18,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:18,996 INFO L225 Difference]: With dead ends: 39535 [2024-12-02 08:22:18,997 INFO L226 Difference]: Without dead ends: 20541 [2024-12-02 08:22:19,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:19,010 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:19,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:19,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20541 states. [2024-12-02 08:22:19,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20541 to 20539. [2024-12-02 08:22:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.399376734674003) internal successors, (28739), 20538 states have internal predecessors, (28739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 28739 transitions. [2024-12-02 08:22:19,432 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 28739 transitions. Word has length 80 [2024-12-02 08:22:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:19,433 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 28739 transitions. [2024-12-02 08:22:19,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 28739 transitions. [2024-12-02 08:22:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 08:22:19,435 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:19,435 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:19,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:22:19,436 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:19,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2037489509, now seen corresponding path program 1 times [2024-12-02 08:22:19,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:19,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775331467] [2024-12-02 08:22:19,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:19,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:19,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775331467] [2024-12-02 08:22:19,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775331467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:19,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:19,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:19,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731559674] [2024-12-02 08:22:19,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:19,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:19,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:19,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:19,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:19,530 INFO L87 Difference]: Start difference. First operand 20539 states and 28739 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:19,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:19,756 INFO L93 Difference]: Finished difference Result 27635 states and 38642 transitions. [2024-12-02 08:22:19,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:19,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 08:22:19,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:19,766 INFO L225 Difference]: With dead ends: 27635 [2024-12-02 08:22:19,766 INFO L226 Difference]: Without dead ends: 8641 [2024-12-02 08:22:19,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:19,779 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:19,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:19,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8641 states. [2024-12-02 08:22:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8641 to 8632. [2024-12-02 08:22:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8632 states, 8630 states have (on average 1.4192352259559675) internal successors, (12248), 8631 states have internal predecessors, (12248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 12248 transitions. [2024-12-02 08:22:19,976 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 12248 transitions. Word has length 81 [2024-12-02 08:22:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:19,977 INFO L471 AbstractCegarLoop]: Abstraction has 8632 states and 12248 transitions. [2024-12-02 08:22:19,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:19,977 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 12248 transitions. [2024-12-02 08:22:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 08:22:19,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:19,978 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:19,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:22:19,978 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:19,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:19,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1483523354, now seen corresponding path program 1 times [2024-12-02 08:22:19,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:19,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96581492] [2024-12-02 08:22:19,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:19,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:20,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:20,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96581492] [2024-12-02 08:22:20,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96581492] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:20,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:20,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:20,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966833787] [2024-12-02 08:22:20,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:20,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:20,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:20,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:20,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:20,066 INFO L87 Difference]: Start difference. First operand 8632 states and 12248 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:20,165 INFO L93 Difference]: Finished difference Result 12172 states and 17138 transitions. [2024-12-02 08:22:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:20,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 08:22:20,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:20,172 INFO L225 Difference]: With dead ends: 12172 [2024-12-02 08:22:20,172 INFO L226 Difference]: Without dead ends: 5098 [2024-12-02 08:22:20,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:20,178 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:20,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5098 states. [2024-12-02 08:22:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5098 to 5096. [2024-12-02 08:22:20,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5096 states, 5094 states have (on average 1.4346289752650176) internal successors, (7308), 5095 states have internal predecessors, (7308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5096 states to 5096 states and 7308 transitions. [2024-12-02 08:22:20,260 INFO L78 Accepts]: Start accepts. Automaton has 5096 states and 7308 transitions. Word has length 82 [2024-12-02 08:22:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:20,261 INFO L471 AbstractCegarLoop]: Abstraction has 5096 states and 7308 transitions. [2024-12-02 08:22:20,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5096 states and 7308 transitions. [2024-12-02 08:22:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:22:20,262 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:20,262 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:20,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:22:20,262 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:20,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1068531220, now seen corresponding path program 1 times [2024-12-02 08:22:20,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:20,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989693430] [2024-12-02 08:22:20,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:20,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:20,346 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:20,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:20,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989693430] [2024-12-02 08:22:20,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989693430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:20,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:20,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:20,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382114201] [2024-12-02 08:22:20,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:20,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:20,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:20,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:20,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:20,348 INFO L87 Difference]: Start difference. First operand 5096 states and 7308 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:20,411 INFO L93 Difference]: Finished difference Result 6868 states and 9728 transitions. [2024-12-02 08:22:20,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:20,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-12-02 08:22:20,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:20,416 INFO L225 Difference]: With dead ends: 6868 [2024-12-02 08:22:20,416 INFO L226 Difference]: Without dead ends: 3330 [2024-12-02 08:22:20,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:20,419 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:20,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:20,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-12-02 08:22:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3328. [2024-12-02 08:22:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3326 states have (on average 1.4624173180998197) internal successors, (4864), 3327 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4864 transitions. [2024-12-02 08:22:20,488 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4864 transitions. Word has length 84 [2024-12-02 08:22:20,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:20,489 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4864 transitions. [2024-12-02 08:22:20,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4864 transitions. [2024-12-02 08:22:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 08:22:20,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:20,490 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:20,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:22:20,490 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:20,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2111828674, now seen corresponding path program 1 times [2024-12-02 08:22:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151076145] [2024-12-02 08:22:20,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:20,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:20,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:20,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151076145] [2024-12-02 08:22:20,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151076145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:22:20,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:22:20,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:22:20,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977483396] [2024-12-02 08:22:20,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:20,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:22:20,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:20,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:22:20,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:20,576 INFO L87 Difference]: Start difference. First operand 3328 states and 4864 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:20,628 INFO L93 Difference]: Finished difference Result 4216 states and 6062 transitions. [2024-12-02 08:22:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:22:20,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-12-02 08:22:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:20,631 INFO L225 Difference]: With dead ends: 4216 [2024-12-02 08:22:20,631 INFO L226 Difference]: Without dead ends: 2446 [2024-12-02 08:22:20,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:22:20,634 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:20,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:22:20,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-12-02 08:22:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2444. [2024-12-02 08:22:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2442 states have (on average 1.4967239967239967) internal successors, (3655), 2443 states have internal predecessors, (3655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3655 transitions. [2024-12-02 08:22:20,686 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3655 transitions. Word has length 86 [2024-12-02 08:22:20,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:20,686 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 3655 transitions. [2024-12-02 08:22:20,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3655 transitions. [2024-12-02 08:22:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 08:22:20,687 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:20,687 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:20,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:22:20,687 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:20,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1630042352, now seen corresponding path program 1 times [2024-12-02 08:22:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:20,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919081698] [2024-12-02 08:22:20,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:20,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:21,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:21,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919081698] [2024-12-02 08:22:21,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919081698] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:21,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979238033] [2024-12-02 08:22:21,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:21,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:21,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:21,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:22:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:21,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:22:21,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:22,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:23,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:23,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979238033] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:23,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:23,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 08:22:23,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328085970] [2024-12-02 08:22:23,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:23,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 08:22:23,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:23,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 08:22:23,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:22:23,218 INFO L87 Difference]: Start difference. First operand 2444 states and 3655 transitions. Second operand has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:25,029 INFO L93 Difference]: Finished difference Result 6150 states and 8628 transitions. [2024-12-02 08:22:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 08:22:25,030 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-12-02 08:22:25,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:25,034 INFO L225 Difference]: With dead ends: 6150 [2024-12-02 08:22:25,034 INFO L226 Difference]: Without dead ends: 5264 [2024-12-02 08:22:25,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=576, Invalid=2180, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 08:22:25,037 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 17386 mSDsluCounter, 6859 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17386 SdHoareTripleChecker+Valid, 8383 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:25,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17386 Valid, 8383 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:22:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2024-12-02 08:22:25,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 5200. [2024-12-02 08:22:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5198 states have (on average 1.3959215082724126) internal successors, (7256), 5199 states have internal predecessors, (7256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 7256 transitions. [2024-12-02 08:22:25,123 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 7256 transitions. Word has length 88 [2024-12-02 08:22:25,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:25,124 INFO L471 AbstractCegarLoop]: Abstraction has 5200 states and 7256 transitions. [2024-12-02 08:22:25,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 24 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:25,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 7256 transitions. [2024-12-02 08:22:25,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 08:22:25,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:25,125 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:25,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:22:25,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:25,326 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:25,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash 861674437, now seen corresponding path program 1 times [2024-12-02 08:22:25,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:25,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829473901] [2024-12-02 08:22:25,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:25,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:25,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829473901] [2024-12-02 08:22:25,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829473901] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:25,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820552109] [2024-12-02 08:22:25,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:25,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:25,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:25,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:25,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:22:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:25,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:22:25,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:26,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820552109] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:27,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:27,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 08:22:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057261646] [2024-12-02 08:22:27,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:27,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 08:22:27,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:27,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 08:22:27,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:22:27,364 INFO L87 Difference]: Start difference. First operand 5200 states and 7256 transitions. Second operand has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:27,880 INFO L93 Difference]: Finished difference Result 12798 states and 17295 transitions. [2024-12-02 08:22:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:22:27,880 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-12-02 08:22:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:27,886 INFO L225 Difference]: With dead ends: 12798 [2024-12-02 08:22:27,886 INFO L226 Difference]: Without dead ends: 9156 [2024-12-02 08:22:27,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:22:27,889 INFO L435 NwaCegarLoop]: 1513 mSDtfsCounter, 15130 mSDsluCounter, 4854 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15130 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:27,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15130 Valid, 6367 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:22:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9156 states. [2024-12-02 08:22:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9156 to 9048. [2024-12-02 08:22:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9048 states, 9046 states have (on average 1.3482202078266636) internal successors, (12196), 9047 states have internal predecessors, (12196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9048 states to 9048 states and 12196 transitions. [2024-12-02 08:22:28,044 INFO L78 Accepts]: Start accepts. Automaton has 9048 states and 12196 transitions. Word has length 89 [2024-12-02 08:22:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:28,044 INFO L471 AbstractCegarLoop]: Abstraction has 9048 states and 12196 transitions. [2024-12-02 08:22:28,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9048 states and 12196 transitions. [2024-12-02 08:22:28,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 08:22:28,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:28,046 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:28,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:22:28,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 08:22:28,246 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:28,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash 713310802, now seen corresponding path program 1 times [2024-12-02 08:22:28,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:28,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865334179] [2024-12-02 08:22:28,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:28,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:28,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:28,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865334179] [2024-12-02 08:22:28,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865334179] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:28,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221005847] [2024-12-02 08:22:28,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:28,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:28,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:28,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:28,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:22:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:28,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:22:28,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:29,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:30,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221005847] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:30,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:30,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 28 [2024-12-02 08:22:30,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589632836] [2024-12-02 08:22:30,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:30,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 08:22:30,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:30,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 08:22:30,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:22:30,738 INFO L87 Difference]: Start difference. First operand 9048 states and 12196 transitions. Second operand has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:33,218 INFO L93 Difference]: Finished difference Result 23414 states and 30963 transitions. [2024-12-02 08:22:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 08:22:33,219 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 08:22:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:33,230 INFO L225 Difference]: With dead ends: 23414 [2024-12-02 08:22:33,230 INFO L226 Difference]: Without dead ends: 15924 [2024-12-02 08:22:33,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=758, Invalid=3024, Unknown=0, NotChecked=0, Total=3782 [2024-12-02 08:22:33,236 INFO L435 NwaCegarLoop]: 1505 mSDtfsCounter, 18111 mSDsluCounter, 16685 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18111 SdHoareTripleChecker+Valid, 18190 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:33,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18111 Valid, 18190 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:22:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15924 states. [2024-12-02 08:22:33,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15924 to 15912. [2024-12-02 08:22:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15912 states, 15910 states have (on average 1.3113764927718417) internal successors, (20864), 15911 states have internal predecessors, (20864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15912 states to 15912 states and 20864 transitions. [2024-12-02 08:22:33,603 INFO L78 Accepts]: Start accepts. Automaton has 15912 states and 20864 transitions. Word has length 90 [2024-12-02 08:22:33,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:33,603 INFO L471 AbstractCegarLoop]: Abstraction has 15912 states and 20864 transitions. [2024-12-02 08:22:33,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.071428571428571) internal successors, (254), 28 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:33,603 INFO L276 IsEmpty]: Start isEmpty. Operand 15912 states and 20864 transitions. [2024-12-02 08:22:33,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 08:22:33,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:33,605 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:33,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:22:33,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:33,805 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:33,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash 157562109, now seen corresponding path program 1 times [2024-12-02 08:22:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:33,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372695746] [2024-12-02 08:22:33,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:33,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:34,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372695746] [2024-12-02 08:22:34,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372695746] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007478200] [2024-12-02 08:22:34,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:34,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:34,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:34,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:22:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:34,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:22:34,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:34,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:35,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007478200] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:35,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:35,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-12-02 08:22:35,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500082400] [2024-12-02 08:22:35,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:35,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 08:22:35,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:35,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 08:22:35,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:22:35,947 INFO L87 Difference]: Start difference. First operand 15912 states and 20864 transitions. Second operand has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:40,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:40,126 INFO L93 Difference]: Finished difference Result 65286 states and 84479 transitions. [2024-12-02 08:22:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-12-02 08:22:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 08:22:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:40,162 INFO L225 Difference]: With dead ends: 65286 [2024-12-02 08:22:40,162 INFO L226 Difference]: Without dead ends: 50932 [2024-12-02 08:22:40,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2150 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1452, Invalid=6738, Unknown=0, NotChecked=0, Total=8190 [2024-12-02 08:22:40,173 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 14961 mSDsluCounter, 11491 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14961 SdHoareTripleChecker+Valid, 13046 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:40,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14961 Valid, 13046 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:22:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50932 states. [2024-12-02 08:22:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50932 to 28824. [2024-12-02 08:22:40,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28824 states, 28822 states have (on average 1.2831864547914786) internal successors, (36984), 28823 states have internal predecessors, (36984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28824 states to 28824 states and 36984 transitions. [2024-12-02 08:22:41,001 INFO L78 Accepts]: Start accepts. Automaton has 28824 states and 36984 transitions. Word has length 91 [2024-12-02 08:22:41,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:41,001 INFO L471 AbstractCegarLoop]: Abstraction has 28824 states and 36984 transitions. [2024-12-02 08:22:41,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 28824 states and 36984 transitions. [2024-12-02 08:22:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 08:22:41,003 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:41,003 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:41,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 08:22:41,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:41,204 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:41,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:41,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1785072166, now seen corresponding path program 1 times [2024-12-02 08:22:41,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:41,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13888555] [2024-12-02 08:22:41,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:41,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:41,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:41,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13888555] [2024-12-02 08:22:41,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13888555] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:41,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274578790] [2024-12-02 08:22:41,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:41,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:41,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:41,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:22:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:42,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:22:42,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:42,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:43,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274578790] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:43,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:43,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2024-12-02 08:22:43,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469343040] [2024-12-02 08:22:43,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:43,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 08:22:43,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:43,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 08:22:43,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:22:43,744 INFO L87 Difference]: Start difference. First operand 28824 states and 36984 transitions. Second operand has 28 states, 28 states have (on average 8.285714285714286) internal successors, (232), 28 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:45,588 INFO L93 Difference]: Finished difference Result 36542 states and 47035 transitions. [2024-12-02 08:22:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:22:45,589 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.285714285714286) internal successors, (232), 28 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 08:22:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:45,608 INFO L225 Difference]: With dead ends: 36542 [2024-12-02 08:22:45,608 INFO L226 Difference]: Without dead ends: 26556 [2024-12-02 08:22:45,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=343, Invalid=1297, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:22:45,615 INFO L435 NwaCegarLoop]: 1519 mSDtfsCounter, 8361 mSDsluCounter, 12099 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8361 SdHoareTripleChecker+Valid, 13618 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:45,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8361 Valid, 13618 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:22:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26556 states. [2024-12-02 08:22:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26556 to 26552. [2024-12-02 08:22:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26552 states, 26550 states have (on average 1.2833145009416196) internal successors, (34072), 26551 states have internal predecessors, (34072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:46,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26552 states to 26552 states and 34072 transitions. [2024-12-02 08:22:46,334 INFO L78 Accepts]: Start accepts. Automaton has 26552 states and 34072 transitions. Word has length 92 [2024-12-02 08:22:46,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:46,334 INFO L471 AbstractCegarLoop]: Abstraction has 26552 states and 34072 transitions. [2024-12-02 08:22:46,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.285714285714286) internal successors, (232), 28 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:22:46,334 INFO L276 IsEmpty]: Start isEmpty. Operand 26552 states and 34072 transitions. [2024-12-02 08:22:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 08:22:46,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:46,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:46,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:22:46,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:46,536 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:46,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:46,537 INFO L85 PathProgramCache]: Analyzing trace with hash -54854566, now seen corresponding path program 1 times [2024-12-02 08:22:46,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:46,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85042023] [2024-12-02 08:22:46,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:46,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:47,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:47,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85042023] [2024-12-02 08:22:47,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85042023] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:47,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161188217] [2024-12-02 08:22:47,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:47,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:47,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:47,213 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:47,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:22:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:47,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 08:22:47,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:50,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:54,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161188217] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:54,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:54,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 26, 20] total 54 [2024-12-02 08:22:54,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537890067] [2024-12-02 08:22:54,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:54,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-12-02 08:22:54,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:54,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-12-02 08:22:54,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2495, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 08:22:54,572 INFO L87 Difference]: Start difference. First operand 26552 states and 34072 transitions. Second operand has 54 states, 54 states have (on average 4.814814814814815) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:23:19,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:19,513 INFO L93 Difference]: Finished difference Result 48942 states and 62635 transitions. [2024-12-02 08:23:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-12-02 08:23:19,514 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 4.814814814814815) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-12-02 08:23:19,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:19,540 INFO L225 Difference]: With dead ends: 48942 [2024-12-02 08:23:19,540 INFO L226 Difference]: Without dead ends: 38828 [2024-12-02 08:23:19,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8516 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=5154, Invalid=22568, Unknown=0, NotChecked=0, Total=27722 [2024-12-02 08:23:19,552 INFO L435 NwaCegarLoop]: 1590 mSDtfsCounter, 30297 mSDsluCounter, 27173 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30297 SdHoareTripleChecker+Valid, 28763 SdHoareTripleChecker+Invalid, 3816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:19,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30297 Valid, 28763 Invalid, 3816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 3704 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 08:23:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38828 states. [2024-12-02 08:23:20,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38828 to 23672. [2024-12-02 08:23:20,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23672 states, 23670 states have (on average 1.2822137727080694) internal successors, (30350), 23671 states have internal predecessors, (30350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:23:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23672 states to 23672 states and 30350 transitions. [2024-12-02 08:23:20,397 INFO L78 Accepts]: Start accepts. Automaton has 23672 states and 30350 transitions. Word has length 92 [2024-12-02 08:23:20,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:20,398 INFO L471 AbstractCegarLoop]: Abstraction has 23672 states and 30350 transitions. [2024-12-02 08:23:20,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.814814814814815) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:23:20,398 INFO L276 IsEmpty]: Start isEmpty. Operand 23672 states and 30350 transitions. [2024-12-02 08:23:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 08:23:20,399 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:20,399 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:20,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:23:20,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:23:20,600 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:20,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:20,600 INFO L85 PathProgramCache]: Analyzing trace with hash 222504259, now seen corresponding path program 1 times [2024-12-02 08:23:20,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:23:20,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675724109] [2024-12-02 08:23:20,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:20,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:23:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:23:20,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:23:20,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675724109] [2024-12-02 08:23:20,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675724109] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:23:20,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351893331] [2024-12-02 08:23:20,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:20,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:23:20,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:23:20,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:23:20,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:23:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:20,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:23:20,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:23:20,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:23:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:23:21,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351893331] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:23:21,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:23:21,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-12-02 08:23:21,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304904583] [2024-12-02 08:23:21,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:23:21,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:23:21,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:23:21,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:23:21,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:23:21,159 INFO L87 Difference]: Start difference. First operand 23672 states and 30350 transitions. Second operand has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 9 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:23:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:22,685 INFO L93 Difference]: Finished difference Result 60340 states and 75523 transitions. [2024-12-02 08:23:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:23:22,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 9 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 08:23:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:22,716 INFO L225 Difference]: With dead ends: 60340 [2024-12-02 08:23:22,716 INFO L226 Difference]: Without dead ends: 38226 [2024-12-02 08:23:22,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:23:22,727 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 5855 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5855 SdHoareTripleChecker+Valid, 4786 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:22,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5855 Valid, 4786 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:23:22,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38226 states. [2024-12-02 08:23:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38226 to 36330. [2024-12-02 08:23:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36330 states, 36328 states have (on average 1.2284188504734639) internal successors, (44626), 36329 states have internal predecessors, (44626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:23:24,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36330 states to 36330 states and 44626 transitions. [2024-12-02 08:23:24,372 INFO L78 Accepts]: Start accepts. Automaton has 36330 states and 44626 transitions. Word has length 93 [2024-12-02 08:23:24,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:24,372 INFO L471 AbstractCegarLoop]: Abstraction has 36330 states and 44626 transitions. [2024-12-02 08:23:24,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.444444444444443) internal successors, (229), 9 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:23:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 36330 states and 44626 transitions. [2024-12-02 08:23:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 08:23:24,373 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:24,373 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:24,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:23:24,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:23:24,574 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:24,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash 309781839, now seen corresponding path program 1 times [2024-12-02 08:23:24,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:23:24,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756256983] [2024-12-02 08:23:24,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:23:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:27,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:23:27,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:23:27,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756256983] [2024-12-02 08:23:27,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756256983] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:23:27,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207029337] [2024-12-02 08:23:27,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:27,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:23:27,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:23:27,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:23:27,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:23:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:27,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-12-02 08:23:27,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:35,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:23:35,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:23:46,573 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:23:46,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207029337] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:23:46,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:23:46,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 35, 34] total 96 [2024-12-02 08:23:46,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301055404] [2024-12-02 08:23:46,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:23:46,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-12-02 08:23:46,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:23:46,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-12-02 08:23:46,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=841, Invalid=8279, Unknown=0, NotChecked=0, Total=9120 [2024-12-02 08:23:46,576 INFO L87 Difference]: Start difference. First operand 36330 states and 44626 transitions. Second operand has 96 states, 96 states have (on average 2.6979166666666665) internal successors, (259), 96 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:29:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:43,377 INFO L93 Difference]: Finished difference Result 134284 states and 164762 transitions. [2024-12-02 08:29:43,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 594 states. [2024-12-02 08:29:43,377 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.6979166666666665) internal successors, (259), 96 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 08:29:43,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:43,502 INFO L225 Difference]: With dead ends: 134284 [2024-12-02 08:29:43,502 INFO L226 Difference]: Without dead ends: 132444 [2024-12-02 08:29:43,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 679 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207612 ImplicationChecksByTransitivity, 332.3s TimeCoverageRelationStatistics Valid=46101, Invalid=416979, Unknown=0, NotChecked=0, Total=463080 [2024-12-02 08:29:43,546 INFO L435 NwaCegarLoop]: 1767 mSDtfsCounter, 36633 mSDsluCounter, 37594 mSDsCounter, 0 mSdLazyCounter, 19884 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36633 SdHoareTripleChecker+Valid, 39361 SdHoareTripleChecker+Invalid, 20387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 19884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:43,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36633 Valid, 39361 Invalid, 20387 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [503 Valid, 19884 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time] [2024-12-02 08:29:43,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132444 states. [2024-12-02 08:29:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132444 to 40563. [2024-12-02 08:29:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40563 states, 40561 states have (on average 1.230738887108306) internal successors, (49920), 40562 states have internal predecessors, (49920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:29:46,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40563 states to 40563 states and 49920 transitions. [2024-12-02 08:29:46,107 INFO L78 Accepts]: Start accepts. Automaton has 40563 states and 49920 transitions. Word has length 93 [2024-12-02 08:29:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:46,107 INFO L471 AbstractCegarLoop]: Abstraction has 40563 states and 49920 transitions. [2024-12-02 08:29:46,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.6979166666666665) internal successors, (259), 96 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:29:46,107 INFO L276 IsEmpty]: Start isEmpty. Operand 40563 states and 49920 transitions. [2024-12-02 08:29:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 08:29:46,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:46,108 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:46,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 08:29:46,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:46,308 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:29:46,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:46,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1576882104, now seen corresponding path program 1 times [2024-12-02 08:29:46,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:46,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226393129] [2024-12-02 08:29:46,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:46,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:47,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:47,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226393129] [2024-12-02 08:29:47,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226393129] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:47,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585872037] [2024-12-02 08:29:47,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:47,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:47,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:47,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:47,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 08:29:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:47,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-12-02 08:29:47,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:53,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:58,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:58,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585872037] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:29:58,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:29:58,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 33, 28] total 67 [2024-12-02 08:29:58,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971300953] [2024-12-02 08:29:58,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:58,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-12-02 08:29:58,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:58,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-12-02 08:29:58,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 08:29:58,951 INFO L87 Difference]: Start difference. First operand 40563 states and 49920 transitions. Second operand has 67 states, 67 states have (on average 3.6417910447761193) internal successors, (244), 67 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:39,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:39,437 INFO L93 Difference]: Finished difference Result 129922 states and 159323 transitions. [2024-12-02 08:31:39,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 316 states. [2024-12-02 08:31:39,437 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6417910447761193) internal successors, (244), 67 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-12-02 08:31:39,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:39,526 INFO L225 Difference]: With dead ends: 129922 [2024-12-02 08:31:39,526 INFO L226 Difference]: Without dead ends: 112599 [2024-12-02 08:31:39,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65364 ImplicationChecksByTransitivity, 85.3s TimeCoverageRelationStatistics Valid=22208, Invalid=121812, Unknown=0, NotChecked=0, Total=144020 [2024-12-02 08:31:39,555 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 27123 mSDsluCounter, 26294 mSDsCounter, 0 mSdLazyCounter, 9703 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27123 SdHoareTripleChecker+Valid, 27904 SdHoareTripleChecker+Invalid, 9862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 9703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:39,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27123 Valid, 27904 Invalid, 9862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [159 Valid, 9703 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-12-02 08:31:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112599 states. [2024-12-02 08:31:42,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112599 to 34933. [2024-12-02 08:31:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34933 states, 34931 states have (on average 1.2370959892359223) internal successors, (43213), 34932 states have internal predecessors, (43213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34933 states to 34933 states and 43213 transitions. [2024-12-02 08:31:42,110 INFO L78 Accepts]: Start accepts. Automaton has 34933 states and 43213 transitions. Word has length 94 [2024-12-02 08:31:42,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:42,111 INFO L471 AbstractCegarLoop]: Abstraction has 34933 states and 43213 transitions. [2024-12-02 08:31:42,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6417910447761193) internal successors, (244), 67 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:42,111 INFO L276 IsEmpty]: Start isEmpty. Operand 34933 states and 43213 transitions. [2024-12-02 08:31:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:31:42,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:42,116 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:31:42,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 08:31:42,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:42,317 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:42,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:42,318 INFO L85 PathProgramCache]: Analyzing trace with hash 280826803, now seen corresponding path program 1 times [2024-12-02 08:31:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:42,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231350207] [2024-12-02 08:31:42,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:42,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:31:42,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:42,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231350207] [2024-12-02 08:31:42,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231350207] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:31:42,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:31:42,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:31:42,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40181829] [2024-12-02 08:31:42,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:31:42,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:31:42,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:42,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:31:42,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:31:42,545 INFO L87 Difference]: Start difference. First operand 34933 states and 43213 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:47,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:47,570 INFO L93 Difference]: Finished difference Result 37188 states and 46608 transitions. [2024-12-02 08:31:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:31:47,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-12-02 08:31:47,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:47,595 INFO L225 Difference]: With dead ends: 37188 [2024-12-02 08:31:47,595 INFO L226 Difference]: Without dead ends: 35684 [2024-12-02 08:31:47,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:31:47,602 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 1786 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:47,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 1379 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 08:31:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35684 states. [2024-12-02 08:31:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35684 to 35684. [2024-12-02 08:31:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35684 states, 35682 states have (on average 1.2322739756740093) internal successors, (43970), 35683 states have internal predecessors, (43970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35684 states to 35684 states and 43970 transitions. [2024-12-02 08:31:50,147 INFO L78 Accepts]: Start accepts. Automaton has 35684 states and 43970 transitions. Word has length 138 [2024-12-02 08:31:50,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:50,148 INFO L471 AbstractCegarLoop]: Abstraction has 35684 states and 43970 transitions. [2024-12-02 08:31:50,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:50,148 INFO L276 IsEmpty]: Start isEmpty. Operand 35684 states and 43970 transitions. [2024-12-02 08:31:50,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:31:50,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:50,153 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:31:50,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:31:50,153 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:50,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 368039186, now seen corresponding path program 1 times [2024-12-02 08:31:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:31:50,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442977998] [2024-12-02 08:31:50,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:31:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 48 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:31:50,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:31:50,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442977998] [2024-12-02 08:31:50,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442977998] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:31:50,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815535134] [2024-12-02 08:31:50,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:50,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:31:50,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:31:50,714 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:31:50,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 08:31:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:50,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:31:50,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:31:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 43 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:31:51,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:31:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 40 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:31:53,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815535134] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:31:53,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:31:53,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-12-02 08:31:53,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973061602] [2024-12-02 08:31:53,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:31:53,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 08:31:53,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:31:53,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 08:31:53,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:31:53,679 INFO L87 Difference]: Start difference. First operand 35684 states and 43970 transitions. Second operand has 32 states, 32 states have (on average 12.375) internal successors, (396), 31 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:31:58,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:58,985 INFO L93 Difference]: Finished difference Result 68404 states and 84526 transitions. [2024-12-02 08:31:58,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-12-02 08:31:58,986 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 12.375) internal successors, (396), 31 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-12-02 08:31:58,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:59,019 INFO L225 Difference]: With dead ends: 68404 [2024-12-02 08:31:59,019 INFO L226 Difference]: Without dead ends: 42548 [2024-12-02 08:31:59,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1274, Invalid=5206, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 08:31:59,034 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 23587 mSDsluCounter, 15754 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23587 SdHoareTripleChecker+Valid, 17293 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:59,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23587 Valid, 17293 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:31:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42548 states. [2024-12-02 08:32:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42548 to 35684. [2024-12-02 08:32:01,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35684 states, 35682 states have (on average 1.2174765988453562) internal successors, (43442), 35683 states have internal predecessors, (43442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35684 states to 35684 states and 43442 transitions. [2024-12-02 08:32:01,314 INFO L78 Accepts]: Start accepts. Automaton has 35684 states and 43442 transitions. Word has length 146 [2024-12-02 08:32:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:32:01,314 INFO L471 AbstractCegarLoop]: Abstraction has 35684 states and 43442 transitions. [2024-12-02 08:32:01,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 12.375) internal successors, (396), 31 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 35684 states and 43442 transitions. [2024-12-02 08:32:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:32:01,319 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:32:01,319 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:32:01,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 08:32:01,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:01,520 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:32:01,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:01,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1623666308, now seen corresponding path program 1 times [2024-12-02 08:32:01,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:32:01,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431712494] [2024-12-02 08:32:01,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:01,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 41 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:02,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:32:02,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431712494] [2024-12-02 08:32:02,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431712494] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:02,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029524069] [2024-12-02 08:32:02,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:02,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:02,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:02,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:02,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 08:32:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:02,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:32:02,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:03,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:32:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 16 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:05,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029524069] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:32:05,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:32:05,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 39 [2024-12-02 08:32:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004729453] [2024-12-02 08:32:05,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:32:05,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 08:32:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:32:05,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 08:32:05,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1425, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:32:05,943 INFO L87 Difference]: Start difference. First operand 35684 states and 43442 transitions. Second operand has 40 states, 40 states have (on average 10.6) internal successors, (424), 39 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:17,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:32:17,645 INFO L93 Difference]: Finished difference Result 70295 states and 85226 transitions. [2024-12-02 08:32:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-12-02 08:32:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 10.6) internal successors, (424), 39 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-12-02 08:32:17,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:32:17,684 INFO L225 Difference]: With dead ends: 70295 [2024-12-02 08:32:17,684 INFO L226 Difference]: Without dead ends: 51171 [2024-12-02 08:32:17,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4219 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2487, Invalid=13013, Unknown=0, NotChecked=0, Total=15500 [2024-12-02 08:32:17,696 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 21580 mSDsluCounter, 27576 mSDsCounter, 0 mSdLazyCounter, 4134 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21580 SdHoareTripleChecker+Valid, 29189 SdHoareTripleChecker+Invalid, 4205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:32:17,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21580 Valid, 29189 Invalid, 4205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 4134 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 08:32:17,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51171 states. [2024-12-02 08:32:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51171 to 41235. [2024-12-02 08:32:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41235 states, 41233 states have (on average 1.2073096791404943) internal successors, (49781), 41234 states have internal predecessors, (49781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41235 states to 41235 states and 49781 transitions. [2024-12-02 08:32:20,461 INFO L78 Accepts]: Start accepts. Automaton has 41235 states and 49781 transitions. Word has length 146 [2024-12-02 08:32:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:32:20,461 INFO L471 AbstractCegarLoop]: Abstraction has 41235 states and 49781 transitions. [2024-12-02 08:32:20,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 10.6) internal successors, (424), 39 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 41235 states and 49781 transitions. [2024-12-02 08:32:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:32:20,468 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:32:20,468 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:32:20,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 08:32:20,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:20,668 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:32:20,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash -946023504, now seen corresponding path program 1 times [2024-12-02 08:32:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:32:20,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152467206] [2024-12-02 08:32:20,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:20,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 52 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:21,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:32:21,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152467206] [2024-12-02 08:32:21,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152467206] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:21,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996703235] [2024-12-02 08:32:21,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:21,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:21,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:21,512 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:21,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 08:32:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:21,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:32:21,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 30 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:22,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:32:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 25 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:24,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996703235] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:32:24,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:32:24,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2024-12-02 08:32:24,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640195635] [2024-12-02 08:32:24,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:32:24,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 08:32:24,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:32:24,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 08:32:24,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1140, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:32:24,694 INFO L87 Difference]: Start difference. First operand 41235 states and 49781 transitions. Second operand has 36 states, 36 states have (on average 11.38888888888889) internal successors, (410), 35 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:32:40,774 INFO L93 Difference]: Finished difference Result 119408 states and 143665 transitions. [2024-12-02 08:32:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2024-12-02 08:32:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.38888888888889) internal successors, (410), 35 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-12-02 08:32:40,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:32:40,844 INFO L225 Difference]: With dead ends: 119408 [2024-12-02 08:32:40,844 INFO L226 Difference]: Without dead ends: 89118 [2024-12-02 08:32:40,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8644 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=4089, Invalid=22971, Unknown=0, NotChecked=0, Total=27060 [2024-12-02 08:32:40,863 INFO L435 NwaCegarLoop]: 1569 mSDtfsCounter, 26013 mSDsluCounter, 18738 mSDsCounter, 0 mSdLazyCounter, 3239 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26013 SdHoareTripleChecker+Valid, 20307 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:32:40,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26013 Valid, 20307 Invalid, 3318 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 3239 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:32:40,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89118 states. [2024-12-02 08:32:46,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89118 to 63968. [2024-12-02 08:32:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63968 states, 63966 states have (on average 1.1962917800081294) internal successors, (76522), 63967 states have internal predecessors, (76522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63968 states to 63968 states and 76522 transitions. [2024-12-02 08:32:46,176 INFO L78 Accepts]: Start accepts. Automaton has 63968 states and 76522 transitions. Word has length 146 [2024-12-02 08:32:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:32:46,176 INFO L471 AbstractCegarLoop]: Abstraction has 63968 states and 76522 transitions. [2024-12-02 08:32:46,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.38888888888889) internal successors, (410), 35 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 63968 states and 76522 transitions. [2024-12-02 08:32:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:32:46,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:32:46,181 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:32:46,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 08:32:46,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 08:32:46,382 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:32:46,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash -4583504, now seen corresponding path program 1 times [2024-12-02 08:32:46,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:32:46,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272405630] [2024-12-02 08:32:46,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:48,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:32:48,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272405630] [2024-12-02 08:32:48,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272405630] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:48,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481161957] [2024-12-02 08:32:48,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:48,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:48,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:48,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:48,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa281fc-b820-40ad-9b7d-67cb3ead1529/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 08:32:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:48,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-12-02 08:32:48,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:59,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:33:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:33:24,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481161957] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:33:24,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:33:24,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 47, 44] total 120 [2024-12-02 08:33:24,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681439528] [2024-12-02 08:33:24,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:33:24,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2024-12-02 08:33:24,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:33:24,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2024-12-02 08:33:24,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1688, Invalid=12592, Unknown=0, NotChecked=0, Total=14280 [2024-12-02 08:33:24,868 INFO L87 Difference]: Start difference. First operand 63968 states and 76522 transitions. Second operand has 120 states, 120 states have (on average 3.575) internal successors, (429), 120 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)